Outlander Season 4 featured a lot more of Brianna than seasons past, which required some adjustment from viewers accustomed to Claire and Jamie as co-leads.
Everything was going swimmingly for daughter and her “da” at first, but the reveal that she’d been raped by Stephen Bonnet and became pregnant turned everything sideways.
In a way, that paralleled what Jamie was going through, as he first attempted to do something for Brianna in the past to benefit her in the future and then tried to adjust to having her handy.